Hybrid switch with solid-state condition

Details Hybrid switch with solid-state condition Hybrid switch with solid-state condition

1990-03-26

1991-09-10

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

200447, G01D 534

Patent

active

050476289

ABSTRACT:
A hybrid switch includes a snap-action switching portion having a butterfly-type mechanism and a solid-state switching portion formed within a single, compact housing. The solid-state switching portion is formed of an electro-electronic device consisting of a light-emitting diode and a phototransistor. Alternatively, the solid-state switching portion is formed of a bipolar transistor.

REFERENCES:
patent: 3624332 (1971-11-01), Van Benschoten et al.
patent: 4649272 (1987-03-01), Lipschutz
patent: 4894530 (1990-01-01), Kitchen
patent: 4943715 (1990-07-01), Konishi

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